1. Lacking brilliance or vitality
   "a dull lacklustre life"
   - lackluster [US], lusterless [N. Amer], lustreless [Brit, Cdn] 
2. Lacking lustre or shine
   "staring with lacklustre eyes"
   - lackluster [US], lusterless [N. Amer], lustreless [Brit, Cdn]

See also: dull, hebetudinous

• Tibicen
• Tibit
• Tibur
• tic
• tic douloureux
• tic-tac-toe
• tical
• tich
• Tichodroma
• Tichodroma muriaria
• tichodrome
• Ticino
• tick
• tick fever
• tick off
• tick over
• tick trefoil
• ticker
• ticker tape
• ticket
• ticket agent
• ticket book
• ticket booth
• ticket collector
• ticket holder